…ised papules and plaques. Central hypopigmentation with scarring, peripheral hyperpigmentation, and alopecia may be clues to discoid lupus. Annular erythematous-to-violaceous plaques, especially in photodistributed regions, may be a clue to subacute…

…to prurigo nodularis on the extensor surfaces of the upper extremities. Hypertrophic lichen planus, lichen amyloidosis, and discoid lupus erythematosus also may be clinically similar. Lesions similar to prurigo nodularis can occur in occasional…

…s, folliculitis decalvans, and dissecting cellulitis of the scalp. Differential diagnosis of scarring alopecia also includes discoid lupus, lichen planopilaris, and pseudopelade. Kerion (Inflammatory Tinea Capitis) The development of a very…

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